Unit 5: Repro and NS Test Review

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to variations in traits among organisms.

Front

What role do bright flower colors play in plant reproduction?

Back

Bright flower colors attract pollinators, which help in the reproduction of plants.

Front

What type of animal did Charles Darwin study to develop his theory of natural selection?

Back

Charles Darwin studied finches (birds) in the Galapagos Islands.

Front

What is the outcome of a population adapting to a new environment over generations?

Back

The population may develop traits that are better suited for survival in the new environment, such as changes in coat color.

Front

What is the significance of adaptations in organisms?

Back

Adaptations are traits that enhance an organism's ability to survive and reproduce in its environment.

Front

What is the difference between artificial selection and natural selection?

Back

Artificial selection is the process by which humans breed organisms for desired traits, while natural selection occurs without human intervention.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

How do environmental changes affect species?

Back

Environmental changes can lead to adaptations, migrations, or extinctions of species depending on their ability to cope with the changes.

Front

What is the role of DNA in inheritance?

Back

DNA carries genetic information that is passed from parents to offspring, determining traits.